Improvement in plows



UNITE STATES PATENT OFFICE.

MARTIN KENNEDY, OF BOSTON, MASSACHUSETTS.

IMPROVE M ENT IN PLOWS.

To all whom it may concern:

Be it known that I, MARTIN KENNEDY, of Boston, in the county of Suffolkand State of Massachusetts, have invented a new and useful Improvementin Flows; and I do hereby declare that the following is a full, clear,and exact description of the construction and operation of the same,reference being bad to the annexed drawings, making a part of thisspecification, in which Figure 1 is a side view of the plow with one ofthe mold-boards removed to show the interior of the plow. Fig. 2 is atop view of the plow. Fig. 3 is a section through the front standard,sole, and point of the plow 5 and Figs. 4c and 5 are detached views ofthe lower part of the plow-handle and a part of the sole, showing themethod of fastening the lower part of the plow-handle to the sole.

My invention relates to a peculiar method of attaching the handles andbeam to the plow, and also to a method of adjusting the moldboard insuch a manner that the plow will out either a wide furrow or anextremely narrow one, or drill, as desired by the operator.

To enable others skilled in the art to make and use myinvention, I willproceed to describe its construction and operation.

A is the sole, and B B are the standards. These parts are cast togetherin one piece. by which greater strength and cheapness are attained andliability to break at the junctions of the standards with the sole is ina great degree prevented.

M M are the mold-boards, hinged to the standard B by means of a rod, 1t,entering eyes in the mold-boards and corresponding eyes in the standardB.

m m are pieces hinged to the mold-boards at s, and pass through anopening in the piece d, the latter being attached to the standard B byentering a slot in the same. A set-screw passes through a hole in thefront part of the piece (I, which can be brought to bear against thesurfaces of the pieces or plates m m, thereby'adjusting the mold-boardsto any angle, so that a narrow or wide furrow may be readily out by theplow.

I am aware that the mold-boards of plows have been made adjustable inorder to cut a wide or narrow furrow butIam not aware that themold-boards have been hinged, as in my in-' vention, to the frontstandard for that purpose. By thus hinging the mold-boards I am en abledto out a wide furrow, and am also enabled,

by closing the mold-boards to their full extent, to cut a very narrowfurrow or drill, which cannot be done with the plows referred to. Themold-boards also, in the cases alluded to, are flared at the bottom,whereas mine are turned in at the bottom and made to hug closely theside of the sole. By this arrangement of parts I amenabled to cut a verynarrow furrow or drill.

The handle is attached to the frame as follows: At one end of the handle0 there is a wedge-shaped opening, 19, (see Figs. 1 and 5,) which fitsupon a correspondingly-formed pin, 0, attached to the sole A. Thewedge-shaped pin 0 and opening 19 in the end of the handle are so formedthat the pin 0 will not enter the hole 19 excepting when the handle isin an ele- I vated position,and when the handle occupies the positionshown in Fig. lit is firmly locked to the sole to. Bolt 6 passes throughholes in the handles and corresponding holes made in the standards B.The inner extremity of the beam D is made in a hooked form, as shown inFig. 1. This hook passes over a bolt, a, which is placed across a slotin the standard B. The hook is held securely in its place by the key h,

passing through the beams and holes in projections on the standard B.

By this simple method of connecting the handles and beam with the frameA B B of the plow it will readily be seen that when a handle or the beamis broken it can be easily replaced. The whole plow, too, can be takenapart, as oan'be seen from its construction, without-the use of wrenchesand loss of time.

P is a steel point attached to the standard B by the key It, and to thesole in any convenient manner.

Having thus fully described my invention. what I claim as new, anddesire to secure by Letters Patent, is-

1. The handle 0, having the Wedgeshaped opening 19 at its lowerextremity, in combination with the pin 0, sole A, standard B, andbolt'e, for attaching the handle to the plow, substantially asdescribed. 7

2. The hooked beam D, in combination with the standards B B and bolts aand h, for attaching the beam to the plow, substantially as described.

3. The hinged mold-boards M M, constructed with their surfaces turned inat the bottom, as described, and hinged to front standard, B, incombination with the hinged plates or pieces on m and piece d, foradjusting the mold-boards to any angle, the whole beingponstrueted andoperated in the manner and for the purpose set forth.

MARTIN KENNEDY.

Witnesses:

ALEXJA. O. KLAUCKE, W. F. HALL.

